/Engine/Plugins/Online/OnlineFramework/Source/LoginFlow/Public/ILoginFlowModule.h
Create a login flow manager that will handle the proper interactions between the code requiring a login flow UI and the application
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ILoginFlowManager](API\Plugins\LoginFlow\ILoginFlowManager) > CreateLoginFlowManager() const